Patent · US Active

Method and device for operating a brushless DC motor

US9748875B2 · kind B2 · utility

1Cited by

5References

13Claims

0Family size

Assignees

Conti Temic microelectronic GmbH · DE
CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Marc Arabackyj · Nuremberg, DE
Edgar Jerichow · Nuremberg, DE
Mathias Kuhn · Eckental, DE
Thomas Guertler · Stuttgart, DE
Andreas Pschorr · Regensburg, DE
Robert Istvan Loerincz · Timișoara, RO

Key dates

Filing date	Apr 17, 2014
Grant date	Aug 29, 2017
Priority date	—
Expiry date	May 18, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH02P29/032
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for operating a three-phase brushless DC motor with a pulse-width modulation controlled electronic commutation in the event of a malfunction. A maximum number (n) of commutation steps, a direction of motor rotation and at least two possible operating end states are specified, and one of the operating end states is chosen. Following indication of a malfunction, the rotor of the brushless DC motor is rotated at the specified maximum number (n) of commutation steps in the specified direction of motor rotation and the brushless DC motor is then set to the operating end state selected.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.